Leviticus 14:39
The priest shall return on the seventh day and look; and if the mark has spread on the walls of the house,
Leviticus 13:7-8
“But if the scab spreads farther on the skin after he has shown himself to the priest for his [ceremonial] cleansing, he shall show himself to the priest again.
Leviticus 13:22
If it spreads farther on the skin, then the priest shall pronounce him unclean; it is a disease.
Leviticus 13:27
And the priest shall examine him on the seventh day; if it is spreading farther on the skin, then the priest shall pronounce him unclean; it is leprosy.
Leviticus 13:36
then the priest shall examine him, and if the scale has spread on the skin, the priest need not look for the yellowish hair; he is unclean.
Leviticus 13:51
He shall examine the mark on the seventh day; if it has spread in the garment, whether in the warp or the woof, or in the leather, whatever the leather’s purpose, the mark is a malignant leprosy; it is unclean.